Can someone help me please i dont have a lot of time! Thank you!

Answer:
Step-by-step explanation:
11(143) = 11(100 + 40 + 3)
= 11(100) + 11(40) + 11(3)
9(821) = 9(800 + 20 + 1)
= 9(800) + 9(20) + 9(1)
3(937) = 3(900 + 30 + 7)
= 3(900) + 3(30) + 3(7)
6(342) = 6(300 + 40 + 2)
= 6(300) + 6(40) + 6(2)
5(209) = 5(200 + 0 + 9)
= 5(200) + 5(0) + 5(9)